XScreenSaver(1) 					      General Commands Manual						   XScreenSaver(1)

NAME

       halftone - simple halftone pattern of moving mass points

SYNOPSIS

       halftone  [-display  host:display.screen] [-visual visual] [-window] [-root] [-count number] [-spacing number] [-sizefactor number] [-delay
       number] [-minmass number] [-maxmass number] [-minspeed number] [-maxspeed number]

DESCRIPTION

       Draws the gravity force in each point on the screen seen through a halftone dot pattern. The gravity force is calculated from a set of mov-
       ing mass points. View it from a distance for best effect.

OPTIONS

       -visual visual
	       Specify which visual to use.  Legal values are the name of a visual class, or the id number (decimal or hex) of a specific visual.

       -window Draw on a newly-created window.	This is the default.

       -root   Draw on the root window.

       -count number
	       How many mass points to move around. Default: 10

       -spacing number
	       Distance between each halftone dot. Default: 14

       -sizefactor number
	       How big each halftone dot should be drawn compared to the spacing value. Default: 1.5

       -minmass number
	       The minimum mass of each mass point. Default: 0.001

       -maxmass number
	       The maximum mass of each mass point. Default: 0.02

       -minspeed number
	       The minimum speed of each mass point. Default: 0.001

       -maxspeed number
	       The maximum speed of each mass point. Default: 0.02 -delay number Per-frame delay, in microseconds.  Default: 10000

ENVIRONMENT

       DISPLAY to get the default host and display number.

       XENVIRONMENT
	       to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.

SEE ALSO

       X(1), xscreensaver(1)

COPYRIGHT

       Copyright  (C)  2002 by Peter Jaric. Permission to use, copy, modify, distribute, and sell this software and its documentation for any pur-
       pose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright  notice  and
       this permission notice appear in supporting documentation.  No representations are made about the suitability of this software for any pur-
       pose.  It is provided "as is" without express or implied warranty.

AUTHOR

       Peter Jaric

X Version 11							    9-oct-2002							   XScreenSaver(1)